definitive

Serving to define or identify as distinct from others: “The Enlightenment pushed this project further trying to make science and its hallmark method definitive of the rational life” ( Peter Machamer )

Supplying or being a final settlement or decision; conclusive: “The fall of the city Constantine had founded marked the definitive end of the Christian Eastern Empire” ( James Carroll ) See Synonyms at decisive.

Authoritative and complete: a definitive biography. See Usage Note at definite.

Mass produced in indefinite quantities over an indefinite period of time. Used of postage stamps.

Biology Fully formed or developed, as an organ or structure.

noun

Grammar A word that defines or limits, such as the definite article or a demonstrative pronoun.

Sentence Examples

When someone gives me some more definitive info on her, I'll tell you.

Marian, it's too early for a definitive answer, but don't give away your old golf outfit just yet.

On the 4th, Russia concluded a two years' armistice, but remained in possession of Azov, which was formally ceded to her by the definitive treaty of peace signed at Constantinople on the 13th of June 1700.

On the 4th of August 1791, was signed at Sistova the definitive peace with Turkey, which practically established the status quo.